It seems that other teams do not value Duran as highly as Brez & Co. Otherwise, I think he'd be traded by now.
Take the Astros: they have a glut of infielders and need a LHB OF'er. We have a glut of OF'ers of which all 4 hit RHPs better than LHPs, even Rafaela.
I'm sure we had talks centered around our OF'ers. Word was, HOU wanted Abreu NOT Duran, and I'm not sure it was all about his extra year of control.
Of course GMs value players differently, and they assess their needs differently, too, and the HOU-BOS situation is a fine example of how just how hard it is to come to an agreement on a trade.
I'm pretty sure HOU would want Duran, but just not enough to give up Paredes and _____. I suggested King or Janek or even Sousa or Abreu, but I'm not sure that was ever discussed, or if both sides would agree to any combination listed.
We got Durbin without having to part with Duran or Abreu, so maybe Brez made the right call.